Clinical trials
Function clinical trials
Below are recruiting function clinical trials, each written for real people, not researchers. We’re tracking 2,557 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04201600Recruiting
Study how blood sugar swings affect thinking in prediabetes
This study looks at how “blood sugar variability” (how much glucose levels bounce around) may affect thinking and memory in people with prediabetes. You may be eligible if you’re older and don’t already have diabetes or conditions that can strongly affect the brain or blood vessels.
Baltimore, MarylandAges 50 years+ - NCT04219709Recruiting
Study how ketosis affects brain function in adults with type 1 diabetes
This study tests whether a “ketosis” state changes brain function in adults with type 1 diabetes. You may be asked to follow specific diet/food delivery plans and use devices that track glucose, which could help researchers understand how metabolism affects the brain.
Boston, MassachusettsAges 18–40 - NCT04229056Recruiting
Computer training to improve thinking and planning after stroke or Parkinson’s
This trial tests computer-based “self-training” to improve executive function, such as working memory—your ability to hold and use information in mind. It’s for adults with a prior stroke, cardiac arrest, or Parkinson’s disease who have trouble on a specific working-memory task.
CopenhagenAges 18–100 - NCT04232085RecruitingPhase 2
Stem cell transplant to rebuild immunity in genetic immune disorders
This Phase 2 trial tests a stem cell (bone marrow) transplant approach to restore bone marrow function and immune function in people with certain inherited immune problems. If you have one of these conditions and a suitable donor, the study may offer a path to rebuild blood and immune systems.
Baltimore, MarylandAges 4 months–50 years - NCT04289571RecruitingPhase 1
Virtual reality vision testing for people with retinal disease
This early-stage study uses virtual reality tasks to check how well a person can move and function using their eyesight. It may help researchers measure vision abilities in a way that could guide future care for retinal disease.
Bethesda, MarylandAges 5–120 - NCT04296604Recruiting
tDCS brain stimulation to improve thinking and mood
This study tests whether a non-surgical brain stimulation called tDCS can improve “executive function,” which means skills like planning, focus, and decision-making. It is designed for people with several mental health and substance-use conditions, and it may help you if those skills are affected by your diagnosis.
Boston, MassachusettsAges 18–65 - NCT04297020Recruiting
Checking brain health in breast cancer survivors
This study looks at differences in brain function in people who have had breast cancer, compared with certain people without that history. It’s testing how brain health changes after breast cancer and relates to mood, thinking, and daily functioning.
Los Angeles, CaliforniaAges 35–65 - NCT04306432Recruiting
Check how cognitive tests change after brain tumor radiation
This trial studies how radiation therapy affects thinking and memory in adults with certain brain tumors. It may help doctors understand which patients are more likely to have cognitive side effects and how to measure them over time.
Copenhagen, Capital RegionAges 18–100 - NCT04310241Recruiting
Test eye alignment and vision changes in lazy eye patients
This study looks at vision problems in children with lazy eye (amblyopia) and eye misalignment (strabismus), and whether they improve with treatment. It may help researchers understand what visual changes to expect and which patients respond best.
Cleveland, OhioAges 6 months–90 years - NCT04330118Recruiting
Study immune cells in DRESS and drug rash reactions
This trial studies how certain immune cells (eosinophils) behave during severe drug reactions like DRESS and during milder drug rashes. It may help doctors understand what drives organ damage and improve how these reactions are managed.
ArrasAges 18 years+ - NCT04330729Recruiting
Aspirin effect on blood clotting in kidney disease
This study checks how aspirin (also called salicylate) affects how platelets work, which helps blood clot. It involves people with advanced chronic kidney disease who are treated with Aranesp, and it may help guide safer care.
RoskildeAges 18–85 - NCT04343157RecruitingPhase 2
Image-guided focused radiation to protect thinking in brain metastases
This Phase 2 trial tests a brain radiation technique that aims to treat up to a few brain metastases while sparing areas important for thinking and memory. It may help people keep cognitive abilities better than with more brain-wide radiation approaches.
San Diego, CaliforniaAges 18 years+ - NCT04349059Recruiting
Diet pattern study for erections in young men
This trial tests whether changing your diet for a short study period affects erectile function. You may be asked to follow specific food rules and avoid sex- and lifestyle-related factors right before and during testing at the clinic.
The Bronx, New YorkAges 18–35 - NCT04391335Recruiting
Breathing tests to spot lung scarring after stem cell transplant
This study checks new ways to measure breathing in children who had a stem cell transplant to better detect a lung condition called bronchiolitis obliterans syndrome. If you join, you’ll do breathing and imaging tests, and researchers will look for patterns that may help with diagnosis.
Toronto, OntarioAges 6–18 - NCT04407338Recruiting
B-DYN device versus standard fusion for lumbar stenosis
This trial compares a specific spinal fusion approach (B-DYN) with the standard fusion surgery for people with lumbar spinal stenosis. It aims to improve function after surgery and check whether the newer approach is well tolerated.
BordeauxAges 40 years+ - NCT04422405Recruiting
One-anastomosis stomach bypass study for reflux and stomach changes
This study looks at how a one-anastomosis gastric bypass changes how your stomach and esophagus work, especially relating to acid reflux. You may be offered the planned surgery if you fit the weight and heartburn/reflux-related conditions, and the team will measure changes before and after.
Schlieren, Canton of ZurichAges 18–65 - NCT04448938Recruiting
MRI study for optic neuritis recovery signals
This study uses a special MRI scan while you rest to look for brain and eye signals that may relate to recovery in people with suspected optic neuritis. If you’re eligible, it may help researchers better understand what predicts vision improvement.
Paris, PARISAges 18 years+ - NCT04449666Recruiting
Brain scan and memory testing after bleeding from a brain aneurysm
This trial uses brain MRI scans and memory/brain-function tests in people who are recovering from a specific type of brain bleed (aneurysmal subarachnoid hemorrhage). It aims to understand how the brain’s memory area changes after the event and how that may relate to memory function during rehabilitation.
Hessisch OldendorfAges 18–70 - NCT04451278Recruiting
Brain scan study to predict outcomes after epilepsy surgery in kids
This trial uses resting-state brain MRI (a scan while you’re not doing a task) to help predict how well children with hard-to-treat epilepsy may do after surgery. If you qualify, you would help researchers see whether the scan can forecast prognosis.
Paris, PARISAges 6–18 - NCT04478409Recruiting
Test to screen Mediterranean family fever in children and adults
This study checks how well a specific blood test works for people who may have Mediterranean family fever (FMF). It may help doctors recognize FMF more accurately and decide on follow-up and treatment.
BronAges 4 years+ - NCT04489342Recruiting
Tests sensor-based movement assessment in axial spondyloarthritis patients
This trial studies an advanced “sensor-based” way to assess how your spine and hips move in people with axial spondyloarthritis. It may help researchers better measure function and choose/monitor treatment, especially for those considered for biologic therapy.
Londonderry, N.IrelandAges 18–80 - NCT04490733Recruiting
Test dual-task walking to improve thinking in colorectal cancer
This study looks at a walking exercise that makes you do two tasks at once (for example, walking while focusing on something) to see if it can improve thinking and memory. It is for people newly diagnosed with early to mid-stage colorectal cancer, and excludes people with other cancers or cancer coming back.
TaipeiAges 40–75 - NCT04493372Recruiting
Testing how well nerves control the heart after spinal cord injury
This study looks at how well the body’s automatic nerve functions (like heart and blood pressure control) work after a traumatic spinal cord injury. The goal is to better understand preserved nerve function and autonomic (automatic body) control, which could help guide future treatments.
Rochester, MinnesotaAges 18–50 - NCT04495660Recruiting
Brain and hearing testing after cochlear implants in children
This study uses a non-painful brain-light monitor to check how hearing and thinking skills change after a cochlear implant in deaf children. It also compares results with children who have normal hearing.
ToulouseAges 10 months–7 years
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Common questions
- Are there clinical trials for function?
- Yes. Clin2 currently lists 2,557 recruiting function studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a function trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a function trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.